Tjan A H
Department of Restorative Dentistry, Loma Linda University, School of Dentistry, Calif.
J Prosthet Dent. 1988 May;59(5):562-7. doi: 10.1016/0022-3913(88)90070-4.
This study was concerned with the adhesion of a light-bodied silicone to a putty silicone in a putty-wash impression technique when the preliminary putty impression was contaminated with human saliva or residues from acrylic resins used in the fabrication of provisional restorations by direct technique. Data indicated that condensation and addition silicones differed in their susceptibility toward the tested contaminants. Salivary contamination and chemical residues from the autopolymerizing acrylic resins weakened the bond strength and caused adhesive failure dependent upon the type of silicone impression material used.
本研究关注的是在使用油灰-清洗印模技术时，当初步的油灰印模被人类唾液或直接技术制作临时修复体所用丙烯酸树脂的残留物污染时，轻质硅酮与油灰硅酮之间的黏附情况。数据表明，缩合型和加成型硅酮对测试污染物的敏感性不同。唾液污染和自凝丙烯酸树脂的化学残留物会削弱粘结强度，并根据所用硅酮印模材料的类型导致粘结失败。
